While waiting for the old forum to come back to life...
If you're looking for a certain topic on the old forum you can google 'fancy rats forum TOPIC', then click the small pointing down arrow next to the URL (the www address under the main result heading) and click cached. This will bring up a basic version of the site, it's not pretty but it has the information.

You could use a different search engine but they may have a different method of viewing the cached page.